I have to have pacemaker replaced every 4 to 4-1/2 years due to the fact that I had electrical ablation of upper chambers and I AM literally pacer dependent. The thing I dread most of all is that I have to stay IN the hospital and have Heparin pumped into my veins until they restore the INR to 2.5. Before the surgery, I am given a regimen of Lovenox shots in the stomach for at least 3 days. I simply dread this. Is there another way? Thank you.